Network Security Engineer

HCLTech is a global technology company, spread across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. We re powered by our people a global, diverse, multi-generational talent - representing 161 nationalities whose unique spark, perspective and boundless passion drive our culture of proactive value creation and problem-solving.

Our purpose is to bring together the best of technology and our people to supercharge progress for everyone, everywhere our clients, partners, their stakeholders, communities, and the planet. As a company, we are deeply focused on accelerating our ESG agenda. We are also creating technology-enabled sustainable solutions with and for our clients and partners. We embed ESG imperatives into every aspect of our business and ensure that the progress we supercharge is responsible, inclusive and beneficial to all our stakeholders in the long term. We have committed to achieving net zero by 2040.

To learn more about how we can supercharge progress for you, visit www.hcltech.com

Job Title: Network and Security Engineer

Location- Paris, France

Hybrid mode- 3 days week (Work from client location)

Language - French + English

Years of relevant experience: 5+

Overview:

The Network and Security Engineer is responsible for designing, implementing, and maintaining secure and efficient network infrastructures. The role includes technical expertise in network architecture, security protocols, incident management, and process optimization. The position requires strong analytical skills, experience with modern network and security technologies, and the ability to work in Agile environments.

Responsibilities:

• Design, implement, and maintain network and security infrastructures (LAN, WAN, firewalls, VPNs, etc.)
• Monitor and respond to network and security alerts, ensuring high availability and resilience
• Manage patching, vulnerability remediation, and compliance with security standards
• Provide Level 3 technical support and manage complex incidents
• Support project teams with network and security expertise for new initiatives
• Automate routine network and security tasks using scripting and orchestration tools
• Document network architectures, processes, and interventions
• Collaborate with IT teams to integrate network and security solutions into business projects
• Participate in Agile (Scrum) processes and continuous improvement initiatives
• Liaise with vendors and external partners as needed

Mandatory skills:

• Expertise in network infrastructure (Cisco, Juniper, or equivalent)
• Strong knowledge of security technologies (firewalls, IDS/IPS, VPN, NAC)
• Experience with automation and scripting (Python, Ansible, etc.)
• Incident management and troubleshooting skills
• Process documentation and optimization

Appreciated skills:

• Experience with cloud networking and security (AWS, Azure, etc.)
• Familiarity with monitoring tools (Nagios, Zabbix, etc.)
• Knowledge of Agile methodologies
• Experience with network access control and segmentation
• Vendor management